With an ac input from 50 Hz power line, the ripple frequency is

• A. 50 Hz in the dc output of half wave as well as full wave rectifier
• B. 100 Hz in the dc output of half wave as well as full wave rectifier
• C. 50 Hz in the dc output of half wave and 100 Hz in the dc output of full wave
• D. 100 Hz in the dc output of half wave and 50 Hz in the dc output of full wave